R
AI cybersecurity updates for MDASH, Mythos, and GPT-5.5.
On Wednesday, the AISI, which evaluates AI models for the British government, said both Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 showed progress well above previous trends on cybersecurity testing. Separately, XBOW released data suggesting “frontier models have taken a major step forward in vulnerability discovery.”
Meanwhile, Microsoft said its multi-model agentic setup, MDASH, was used to discover 16 CVEs in this week’s Patch Tuesday updates and is the leader on the CyberGym security evaluation framework.
Image: AISI
Follow topics and authors from this story to see more like this in your personalized homepage feed and to receive email updates.
Loading comments
Getting the conversation ready...
Most Popular
Most Popular
- It’s not just LG. Every TV company is spying on you
- OpenAI and Microsoft knew they were starting a ‘doom loop’ for the web
- The 2.5-hour AI-generated Odyssey movie is 2.5 hours too long
- Gemini went rogue, hacked three companies, and Google hid it
- The Apple Watch Series 12 is the start of a new wearable era












